Improvement in eobse-shoes



@eine titties` strutv @ffirg GEORGE B. MILLIGAN, 0F BALTIMORE, MARYLAND, AssIcNoR'To 1. POULT-V Y NEY, or SAME PLAGE.

. Leim Patent N0. 80,199', aafeaiuzy 21,1868.

IMPROVBMEMTIN nenes-SHOES.

TO ALLWHOM'IT MAY GONCERN: n

Be it known that I, GEORGE B. MILLIQAN, of Baltimore, of Baltimore county, in the State o'f Maryland, have invented certain new and useful Improved Supplemental Horse-Shoe; and I do hereby declare that the following is a full and exactdescrip'tion thereof, reference being had to the accompanying drawings, making part 'of this application.

l Myl'invention relates 'to certain new and useful improvements in devices or appliances for roughing horses shoes. a .Y

A Previous to my invention, two methods oi changing the condition of horses shoes, to suit diferent kinds of footing, have been suggested, and generally employed. One plan practised has beento remove the ordinary v shoe from the horses foot, and put ice-calles or projections on the shoe, (to prevent slipping onth'e ice;) the other plan-has been to' apply to the shoe, (while on the horses foot,) adapted to receive such appliances, either steel points, screwed into or otherwise secured to the shoe, or a false shoe provided with points, clamped or otherwise secured to the shoe. Y l v i The lastnamed method appearmtfrom experiment and experience, to possessthe greatestntility, and the false shoe, provided with the ice-points, appears to be the most desirable means for carrying out this` method of roughingvthe horses shoes without removing them from the feet. j

The main diiiiculties encountered in carrying into practice 'successfully this method, or theuseof false shoes, have been in providing a false shoe, which, while it was elicient and ligh'tmight be secnrelyor rigidly attached to the horses shoe, and could be enpeditiously applied andlremoved by any one. To overcomethese` diiculties, false shoes have beenj'so made that they could be applied to andapparentlysecurely clamped on to `'the lower side of the shoe of the horse, without any provision in the shoe for the introduction of screws or other analogous mechanical. socuring-devices, but it has been found that where the false shoe is so clamped on, it cannot be wholly relied upon, and as the slightest liability of the casting ofthe false shoe renders the'use of the latter most objectionable, it is very important to overcome this objection, which is the main object of my invention; and to this end my. invention consists in so forming the false shoe, and preparing the ordinary shoe to receive it, that the false shoe and'permanont shoe may be securely interlocked and coupled together by expanding the false shoeinto suitable depressions in the permanent shoe, als will bepresentlyimore fully explained. i

'To enable those skilled in the. art to inake and use my invention, Ijwi'll. proceed to describe it more fully, referring by letters to the accompanying drawings, in which-. f Y

Figure l is a top view of an ordinary horse-shoe, ad',1p',t"e:'.l4 to receive and havingapplied to it a false shoe,4 .according to my invention. i i

Figure 2 is a bottom view of the same. Figure 3 is a vertical section at a: z, iig. ,1,'and

Figure 4 is'a vertical cross-section at y y, iig. 1'. n the several iigures, the same 4parts are designated by the same letters of reference. 4 A is :in ordinary horseshoe, but formed or provided withtwo notches or cut'sat blz, and with a depression wat c, into which t certain'projections or lugs ofthe false shoe, as will be presently explained. Y '.lhc false shoe is formed of two parts, D D2, hinged or pvoted together at e.i Eachportion is provided with ice-calks or points, ffg andy g2, as clearly illustrated, and alsowith projecting Shanks, h and h2. v4One of those shanks, 7L, is tapped, to receive the `thread of amalescrew, t'. The other, h2, is hollowed out slightly, to form a. scat for the conical head of 'said screws', (see g.'2,) and said screw is providedwith a jamnnt,im.

From tbe'inner edge of each portion of the false shoe, near the heel, project upward lugs op, and each of these lugsts into one of the cuts or slots b b,a'nd at the toe-portion of said false shoe -is a projecting lip or hook, s, which interlocks with or fits into the depression c of the permanent shoe, (all as clearly illustrated.)

Thecuts b b are made to taper outwarda little, and the projecting lugs op are correspondingly tapered, so

.that'uwhen adjusted to a .complete bearingl in the said cuts b b, the false shoe is held firmly to the permanent shoe, and cannot pull downward, (see iig.4

The operation may be thus briefly explained: When it. is desired to apply `or attach the false shoe to the permanent shoe, the hinged parts, D D2, are moved together suiiiciently (the jam-nut m being turned back, and

screw z' turned in, suiicientlyto permit it) to allow thereadyadjustment to the permanent shoe, by slipping the lip s'vinto its depression or sezi.t;,andv theldgs op into theircutsor seats -b 6.-' The screw efis then turned out, (or

uns crewed,) its head bearing against the shank la?, audits thread against shanl h, until the hinged-portions of the false shoe-are spread apart or expanded sniiicientiy to bring the lugs o p home tight into the tapering cuts b b, when the jam-nut m is run up, to insure the retention of the parts in this condition.

The false shoe is now rigidly or rmly coupled to the permanent shoe in a most reliable manner. Y Whenever it is desired to remove the false shoe, the hostler -has, only to apply his wrenchv to the'jam-nut m and screw 1,', and allow the hinged portions D D2 to swing together, and release the lugs from the cutsb b, when the said false shoe may be taken o without any trouble. ,j v

' It will be se'enthat by means oi' the notches and interlocking projections, the false and permanent shoes are securely coupled together, while at the same time there are vno screw-holes or screws to be applied, or other devices, which are liable toderangement, and to become inoperative. e

i Of course, the size and shape of the cuts or depressions of the permanent shoe, and of the interlocking `projections of the false shoe, -may be varied or transposed, and their vpositions and number may he changed, A without departing from the gistof my invention.

By. positively interlocking the parts, as'shown, the 'false shoe is so secured. to the permanent shoethatV it cannotpossibly have any longitudinal play, or slipiback and forward onthe permanent shoe, even ii' the clampingmechanism Vhenot perfectly and tightlyadjusted. It will be understood, therefore, that a great advantage is thus gained over that kind off appliance in which theifaise shoe'is held longitudinally only, by being clamped against the planeinuer edge of thepermanent shoe. Y I v s The uses andadrantages of fa'lse shoes for roughingware so well knownto those who shoe and keep horses, thatI need not here'refer to them. j

' It will he seen that whilethewfalse and permanentshoes, adapted to be clamped-and positively interlocked in the manner shown, are simple, and economicof manufacture, the ends and objects aimed at are most eihciently attained. 1

-I am aware that an expanding -false shoe, adapted to be clamped on tothe ordinary shoe, is old, and that false shoes and ice-points have been attached to the horses shoe by means of screws and bolts. I do not, therefore, wish to be understood as claiming separately either an expanding shoe, or a perro tuent securing of the roughingwdevice to the horses shoe; but having fully explained my newimethod of forming and adapting to each other the expanding false shoe and permanent horse-shoe,

What I. claim as new, and desire to secure hy Letters Patent, is

An expanding false shoe, provided with interlocking projections, adapted to suitable dcpressionsin the permanent shoe, or the equivalents thereof, for the: purpose of firmly securing the-roughing or false shoe and the' permanent shoe together, as and for the purposes set forth.

-I also claim the. employment of an Ainterlocking.li'puor hook,.s, in combination with the false shoe, and adapted to operate in the manner and vfor the purposes substantially as described.

In testimonywhereof, I 'have hereunto set my hand and seal, this seventh day of April, 1868.

GEQRGE B. MILLIGAN. [1.. s]

liritnesses:

G. E. SANGSTON, A. PAnItnrLL. 

